#343F97#343F97

#343F97 is a dark, vivid blue. Relative luminance 0.065; OKLCH L 41.2% C 0.143 H 273.0°. Best body text is #FFFFFF at 9.12:1 contrast (WCAG AA passes).

Color values

HEX	#343F97
RGB	rgb(52, 63, 151)
HSL	hsl(233, 49%, 40%)
HSV	hsv(233, 66%, 59%)
CMYK	cmyk(65.6%, 58.3%, 0%, 40.8%)
CIE-LAB	lab(30.69, 24.78, -49.75)
CIE-LCH	lch(30.69, 55.58, 296.47°)
OKLab	oklab(41.22% 0.0075 -0.1431)
OKLCH	oklch(41.22% 0.143 273)
XYZ	xyz(8.7777, 6.5187, 30.0678)
Luminance	0.0652 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#343F97 #978C34

analogous

#347197 #343F97 #5A3497

triadic

#343F97 #97343F #3F9734

tetradic

#343F97 #973471 #978C34 #34975A

square

#343F97 #973471 #978C34 #34975A

split-complementary

#343F97 #975A34 #719734

monochromatic

#15193C #242C69 #343F97 #4855C0 #7680D0

Accessibility & contrast

On white

9.12

#343F97 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.30

#343F97 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #343F97

9.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##343F97	#FFFFFF	#000000	##FFFFFF
##343F97	1.00	9.12	2.30	9.12
#FFFFFF	9.12	1.00	21.00	1.00
#000000	2.30	21.00	1.00	21.00
##FFFFFF	9.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004D9A

Deuteranopia (green-blind)

#004495

Tritanopia (blue-blind)

#005464

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #343f97;
/* rgb */ color: rgb(52, 63, 151);
/* oklch */ color: oklch(41.2% 0.143 273.0);

Tailwind

colors: {
  custom: {
    50: '#7774b6',
    500: '#343f97',
    950: '#000000',
  },
}

SCSS

$custom: #343f97;
$custom-light: #7774b6;
$custom-dark: #000000;

JSON

{
  "hex": "#343f97",
  "rgb": {
    "r": 52,
    "g": 63,
    "b": 151
  },
  "hsl": {
    "h": 233.333,
    "s": 48.768,
    "l": 39.804
  },
  "oklch": {
    "l": 0.41215,
    "c": 0.14329,
    "h": 273
  },
  "luminance": 0.06519
}

Semantic roles & 50–950 ramp

primary

#343F97

secondary

#B8B06F

accent

#C94FD8

background

#F7F7FB

surface

#EEEDF6

border

#C9C8D0

text

#0A0811

muted

#7C7B80

Preview Lab

Preview with #343F97

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →